fix: using fixed version for unittest

Author: gsautner

.github/workflows/tests.yml

@@ -25,31 +25,31 @@ jobs:
       - name: Add repos
         run: |
           helm repo add bitnami https://charts.bitnami.com/bitnami
-          helm plugin install https://github.com/helm-unittest/helm-unittest
+          helm plugin install https://github.com/helm-unittest/helm-unittest --version 0.3.4
 
       - name: Set up Python
         uses: actions/setup-python@v4.7.0
         with:
           python-version: 3.7
-  
+
       - name: Set up chart-testing
         uses: helm/chart-testing-action@v2.3.1
 
-      - name: List chart-testing changes 
+      - name: List chart-testing changes
         id: list-changed
         run: |
           changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
           if [[ -n "$changed" ]]; then
             echo "{changed}={true}" >> $GITHUB_OUTPUT
           fi
-  
+
       - name: Run chart-testing lint
         run: ct lint --validate-maintainers=false --target-branch ${{ github.event.repository.default_branch }}
 
 
       - name: Run unit tests
         run: |
-          for FILE in charts/*; do 
+          for FILE in charts/*; do
             helm dependency update $FILE
             helm unittest $FILE
           done